The equation of normal at the point ( 0 , 3) of the ellipse 9x^{2} + 5y^{2} = 45 is.
y - 3 = 0
y + 3 = 0
x - axis
y - axis
The directrix of the parabola y^{2} = 16x is
x = - 4
y = - 4
x = 4
y = 4
If the line y = mx + k touches the parabola x^{2} = 4ay, then the value of k is
^{a}/m
am
am^{2}
-am^{2}
The focus of the parabola y^{2} - 8x - 32 = 0 is
(-2, 0)
(0 , 2)
(4 , 0)
(2 , 0)
The distance from the centre of the ellipse to one of the foci and one of the vertices of the ellipse is called
Eccentricity
Ellipse
Focal length
None of these
If distance between the foci of an ellipse is equal to its minor axis, then eccentricity of the ellipse is
^{1}/√2
^{1}/√3
^{1}/√4
^{1}/√6
The equation of the ellipse whose latus rectum is 8 and eccentricity ^{1}/√2 , is
The length of latus rectum of the parabola x^{2} = - 16y is
- 16
- 4
16
4
The equation of directrix of parabola y^{2} = 12 x is
3
-3
-4
The eccentricity of the ellipse 4x^{2} + 9y^{2} = 36 is
^{1}/2√3
^{√5}/3
^{√5}/6